Cigarette lighter



FIG. 1 is a front and side perspective view of a cigarette lighter with the top open, showing my new design;

FIG. 2 is a top, front and side perspective view of the lighter with the top closed, showing the side opposite to the side shown in FIG. 1;

FIG. 3 is a bottom, rear and side perspective view of the lighter with the top closed, the same side being shown as in FIG. 1. 

The ornamental design for a cigarette lighter, as shown and described. 